$700 seems high for flat head briggs. Should be around $200 or best is to get ahold of Jimmy Glenn engine builder in Monroe, Ga briggs 5 hp engine building book only cost $20 and do it your self with parts head gasket , carb diagram , spark plug, the buy new piston with rings around $30 to 40 and do the work yourself. And check your valves?
just email him you can find him in the flathead section. He just posted in the flathead under pipe/cam combination
that's bout right. 200-300 plus parts .piston rings cam rod valves lifters springs retainers guides plug gaskets go threw carb
hopefully crank is good and block has not shrunk providing too much pop up
though i think last one I had done was in the 550 range. bought several under 400, not as good though
CRE (as in Carlson Racing Engines)? Hope not. Our rebuilds aren't near that high, unless there was something drastically wrong - needed a crank, rod, cam, fuel tank, carb, something major in addition to the normal parts we would replace.
Our flathead rebuilds are $150 +parts on engines that we have built ($175 + parts on engines that someone else has previously built.) An average rebuild on an engine with decent maintenance will run in the $325 - $350 range. We're not the cheapest, but certainly not the most expensive either.
I bought my kart about 5 months ago or so... It has a flathead on it, don't know much about it, was wondering when a engine should be rebuilt.. Motor run great just didn't know if there was a certain time to get a rebuild... By the way the Bully clutch I purchased from you (CRE) back in Dec. '13 looks like a nice piece, how much to rebuild my old clutch, think its a bully but not sure... Thanks...
Flatheads typically need rebuilt after 8-10 nights of local racing, (more often if you are competing at the national level or money racing.) After 5 or 6 race days, 250 - 300 laps, the engine starts losing significant enough power to merit a rebuild. Local racers will typically stretch the engine maintenance out to 8 races or more (depending on your budget and how hard your turning the engine.) Most of thie power loss is in valve seal and ring seal. A simple freshen-up will bring the engine right back to where it was power-wise without costing an arm and a leg. Of course you can run it longer, but you really chance parts failure (specifically valve springs and retainers most of all.) It's good to keep up with rod bearings as well.
Now, if it's a small plate engine, I wouldn't be afraid to run it longer between rebuilds. My own son's purple plate engine had 15 nights on it and he won with it that night before I went through it and got everything back to within tolerances.
On the clutch, a Bully clutch rebuild is typically $100 or so, depending on the parts needed/wanted. Machinework & labor is $50, add a couple friction discs and you're good to go most times. If it needs a basket or any additional parts, of course that would be extra.
If you need anything, please feel free to give us a call.
Thanks for the response... I just purchased my 2nd Kart as a roller, trying to get a decent clone for that Kart but deffinatly love my Flathead... Will keep you all in mind when it comes time for flathead work...